Moderate: Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update

Updated microcodectl packages that fix several security bugs and add various enhancements are now available. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

AMD Downplays CPU Threat Opening Chips to Data Leak Attacks

AMD is seeking to downplay side-channel attacks that can leak potentially sensitive data from its processors released between 2011 and 2019. The “Take A Way” attack, so-called by researchers with the Graz University of Technology in a new analysis this weekend, is a side-channel attack...

AMD Downplays CPU Threat Opening Chips to Data Leak Attacks

AMD is seeking to downplay side-channel attacks that can leak potentially sensitive data from its processors released between 2011 and 2019. The “Take A Way” attack, so-called by researchers with the Graz University of Technology in a new analysis this weekend, is a side-channel attack...

9 Years of AMD Processors Vulnerable to 2 New Side-Channel Attacks

AMD processors from as early as 2011 to 2019 carry previously undisclosed vulnerabilities that open them to two new different side-channel attacks, according to a freshly published research. Known as "Take A Way," the new potential attack vectors leverage the L1 data L1D cache way predictor in...

PT-2020-1714

Name of the Vulnerable Software and Affected Versions AMD CPU affected versions not specified Description The issue is related to the implementation of a way predictor mechanism in the L1D cache of AMD CPUs. It allows an attacker to access memory on the same physical CPU core by exploiting the fa...

PT-2020-1713

Name of the Vulnerable Software and Affected Versions AMD CPU affected versions not specified Description The issue is related to a flaw in the implementation of the way predictor mechanism in the L1D cache of AMD CPUs. This flaw is connected to collisions in the hash function used to calculate...

L1 Terminal Fault speculative side channel

ISSUE DESCRIPTION In x86 nomenclature, a Terminal Fault is a pagetable walk which aborts due to the page being not present e.g. paged out to disk, or because of reserved bits being set. Architecturally, such a memory access will result in a page fault exception, but some processors will...